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// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package storage
import (
"database/sql"
"fmt"
"github.com/miniflux/miniflux/crypto"
"github.com/miniflux/miniflux/model"
)
// CreateSession creates a new session.
func (s *Storage) CreateSession() (*model.Session, error) {
session := model.Session{
ID: crypto.GenerateRandomString(32),
Data: &model.SessionData{CSRF: crypto.GenerateRandomString(64)},
}
query := "INSERT INTO sessions (id, data) VALUES ($1, $2)"
_, err := s.db.Exec(query, session.ID, session.Data)
if err != nil {
return nil, fmt.Errorf("unable to create session: %v", err)
}
return &session, nil
}
// UpdateSessionField updates only one session field.
func (s *Storage) UpdateSessionField(sessionID, field string, value interface{}) error {
query := `UPDATE sessions
SET data = jsonb_set(data, '{%s}', to_jsonb($1::text), true)
WHERE id=$2`
_, err := s.db.Exec(fmt.Sprintf(query, field), value, sessionID)
if err != nil {
return fmt.Errorf("unable to update session field: %v", err)
}
return nil
}
// Session returns the given session.
func (s *Storage) Session(id string) (*model.Session, error) {
var session model.Session
query := "SELECT id, data FROM sessions WHERE id=$1"
err := s.db.QueryRow(query, id).Scan(
&session.ID,
&session.Data,
)
if err == sql.ErrNoRows {
return nil, fmt.Errorf("session not found: %s", id)
} else if err != nil {
return nil, fmt.Errorf("unable to fetch session: %v", err)
}
return &session, nil
}
// FlushAllSessions removes all sessions from the database.
func (s *Storage) FlushAllSessions() (err error) {
_, err = s.db.Exec(`DELETE FROM user_sessions`)
if err != nil {
return err
}
_, err = s.db.Exec(`DELETE FROM sessions`)
if err != nil {
return err
}
return nil
}
// CleanOldSessions removes sessions older than 30 days.
func (s *Storage) CleanOldSessions() int64 {
query := `DELETE FROM sessions
WHERE id IN (SELECT id FROM sessions WHERE created_at < now() - interval '30 days')`
result, err := s.db.Exec(query)
if err != nil {
return 0
}
n, _ := result.RowsAffected()
return n
}
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